Explanation

PROM, which stands for Programmable Read-Only Memory,

It is a type of chip that can be programmed with data after manufacturing, unlike standard ROM.

This is programmed during production and cannot be changed. 

Explanation

VBA (Visual Basic for Applications) is used to produce macros.

VBA is a programming language owned by Microsoft and is integrated into most Microsoft Office applications

Explanation

 Xenon is the most polarized noble gas due to its large size and electron cloud,

This makes it more susceptible to distortion by external electric fields. 

Explanation

 Newspaper, and paper products in general, can typically be recycled around 5 to 7 times

Before the fibers become too short and weak to be reused effectively in the recycling process.

Explanation

In the borax bead test, cobalt ions (Co²+) react with borax to form cobalt metaborate (Co(BO2)2), which produces a distinct blue color. 

Explanation

 Hydroxylation of alkene can be carried out by  alkaline KMnO4. 

Hydroxylation refers to the addition of two hydroxyl (OH) groups across a carbon-carbon double bond in an alkene.

Cold, dilute, alkaline potassium permanganate (KMnO4) is a common reagent used for this reaction.

It reacts with the alkene to form a vicinal diol (a molecule with two hydroxyl groups on adjacent carbon atoms). 

Explanation

Explanation

The average global concentration of ozone is around 300 DU,

Meaning if all the ozone in the Earth's atmosphere were compressed to that thickness, it would form a layer 3 millimeters thick. 

Explanation

 Cyclohexane is an alicyclic compound. 

Alicyclic compounds are cyclic (meaning they form a ring) and saturated (meaning they only have single bonds between carbon atoms).

Cyclohexane fits this description as it is a six-membered ring with only single bonds connecting the carbon atoms. 

Explanation

 Ethene (also known as ethylene) is a naturally occurring plant hormone that plays a key role in fruit ripening.

It is commonly used commercially to artificially ripen fruits like bananas, tomatoes, and avocados.